Systems of Equations and Review

What is the value of the y-coordinate of the solution to the system of equations 
x-2y=1
x+4y=7 

• 1
• -1
• 3
• 4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve for x and y
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

 $5x+4=5x+4$  

• one solution

• no solution

• infinite solutions

Tags

CCSS.8.EE.C.7A

 $9-x=-x+9$  

• one solution

• no solution

• infinite solutions

Tags

CCSS.8.EE.C.7A

 $3\left(x+4\right)=3\left(x-8\right)$  

• one solution

• no solution

• infinite solutions

Tags

CCSS.8.EE.C.7A

 $6x=5x$  

• one solution

• no solution

• infinite solutions

Tags

CCSS.8.EE.C.7A

 $x+9\ =\ x-9$  

• one solution

• no solution

• infinite solutions

Tags

CCSS.8.EE.C.7A

4x + 7 = 23

• x = 16
• x = 4
• x = 9
• x = 12

Tags

CCSS.7.EE.B.4A

Solve.  -3x - 12 = 15

• 9
• -1
• 27
• -9

Tags

CCSS.7.EE.B.4A

What is the solution to this equation?

• one solution
• no solution
• infinite solutions
• none of these

Tags

CCSS.8.EE.C.7A